Katie met Argentinian model Leandro at the Oscars in 2011, but their own commitments on their respective continents meant the pair had decided to part ways.

The TV personality told fans on her website that the pair had "a deep affection for each other".

The mother of three said: "Leo and I have had a lovely fun time for a couple of years, we will always feel deep affection for each other, but sometimes relationships just run their course."

"Pressures of work on different continents, natural demands of family ties, and careers, have meant we have spent a huge amount of time apart even when we were in the same country."

"This meant it was difficult for the relationship to move forward."

She added: "Accordingly we've mutually decided to call it a day, but we really wish each other nothing but the very best and will remain best of friends, whoever he eventually settles down with will be a very lucky girl."